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Relaxation techniques for people with chronic obstructive pulmonary disease: a systematic review and a meta-analysis |
Volpato E, Banfi P, Rogers SM, Pagnini F |
Evidence-Based Complementary and Alternative Medicine 2015;(628365):Epub |
systematic review |
INTRODUCTION: Chronic Obstructive Pulmonary Disease (COPD) people suffer from severe physical impairments, which often elicit significant psychological distress and impact their quality of life. This meta-analysis aimed to assess evidence from the scientific literature on the effects of relaxation techniques. METHODS: We investigated 9 databases to select 25 RCTs. Studies included both inpatients and outpatients with COPD. Both respiratory and psychological outcomes were considered. RESULTS: Relaxation techniques showed a little positive effect on the value of the percentage of predicted FEV1 (d = 0.20; 95% Cl 0.40 to -0.01) as well as a slight effect on levels of both the anxiety (d = 0.26; 95% Cl 0.42 to 0.10) and depression (d = 0.33; 95% Cl 0.53 to 0.13). The higher effect size was found in the quality of life value (d = 0.38; 95% Cl 0.51 to 0.24). The assessed quality of the studies, based on the PEDro scale, was generally medium/high. CONCLUSION: Relaxation training can have a moderate impact on both psychological well-being and respiratory function, resulting in noticeable improvements in both. Although higher quality research is required, our results sustain the importance of relaxation techniques as a tool to manage COPD.
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